O'Hara () is a surname. The death of the eponym – Eaghra Poprigh mac Saorghus, lord of Luighne, in Connaught – is mentioned in the Annals of the Four Masters in 926. Notable people with the surname include: Aidan O'Hara (born 1964), Irish diplomat Barratt O'Hara (1882–1969), American politician Bernard O'Hara (born 1945), Irish historian Catherine O'Hara (born 1954), Canadian actress Charles O'Hara (1740–1802), British military officer Charles O'Hara, 1st Baron Tyrawley (1650–1724), Irish soldier Dane O'Hara, New Zealand rugby league footballer David O'Hara (born 1965), British actor Dorothea Warren O'Hara (1873–1972), American ceramic artist Eddie O'Hara (politician) (1937–2016), British politician Edwin Vincent O'Hara (1881–1956), American prelate of the Roman Catholic Church Éilis Ni Dhuibhne (Elisabeth O'Hara; born 1954), Irish novelist Frank O'Hara (1926–1966), American poet Gerald Patrick Aloysius O'Hara (1895–1963), American prelate of the Roman Catholic Church Geoffrey O'Hara (1882–1967), Canadian American composer, singer and music professor George O'Hara (actor) (1899–1966), American actor and screenwriter Gerry O'Hara (1924–2023), British film and television director Glen O'Hara (born 1974), British academic historian Harry Fusao O'Hara (1891–1951), Japanese First World War pilot, first and only known Japanese pilot in the British Royal Flying Corps Helen O'Hara (born 1955) British musician, violinist James O'Hara (quartermaster) (1752?–1819), American army officer James O'Hara, 2nd Baron Tyrawley (1682–1774), British army officer James G. O'Hara (1925–1989), American statesman Jamie O'Hara (footballer) (born 1986), British football player Jamie O'Hara (singer) (1950–2021), American country music singer-songwriter, one half of the duo The O'Kanes Jean O'Hara (1913–1973), American prostitute Joan O'Hara (1930–2007), Irish actress John Bernard O'Hara (1862–1927), Australian poet John Francis O'Hara (1888–1960), American catholic cardinal and educator John Henry O'Hara (1905–1970), American writer John Kennedy O'Hara (born 1961), American politician John Myers O'Hara (1870–1944), American poet Joseph O'Hara, several people Justice O'Hara, several people Kane O'Hara (c.1711–1782), Irish composer Kelley O'Hara (born 1988), American footballer Kelli O'Hara (born 1977), American actress and singer Kid O'Hara (1875–1954), American baseball player Loral O'Hara (born 1983), American engineer and NASA astronaut Maggie Blue O'Hara, Canadian actress Mario O'Hara (1946–2012), Filipino film director, film producer and screenwriter Mark O'Hara (born 1995), Scottish footballer Mary O'Hara (born 1935), Irish singer and harpist Mary Margaret O'Hara, Canadian singer-songwriter Maureen O'Hara (1920–2015), Irish-American actress Michael O'Hara, American volleyball player Michael O'Hara, American writer and producer Michael D. O'Hara (1910–1978), American jurist Miguel O’Hara, Fictional superhero, commonly known as Spider-Man 2099 Paige O'Hara (born 1956), American singer and actress Pat O'Hara (born 1968), American football player, coach Patsy O'Hara (1957–1981), Irish Republican hunger striker Patrick O'Hara, Irish politician Quinn O'Hara (1941–2017), Scottish-born American actress Sally Brice-O'Hara (born 1953), American 27th Vice-Commandant of the U.S. Coast Guard Shaun O'Hara (born 1977), American football player Shawn O'Hara (1958–2018), American politician Theodore O'Hara (1820–1867), American poet and Confederate colonel Thomas J. O'Hara C.S.C., Ph.D., an American president of King's College, Pennsylvania Tom O'Hara (1942–2019), American runner Valentine O'Hara (1875–1941), Irish author and authority on Russia Colonel Walter O'Hara (1789–1874), British army officer